| abstract |
The invention discloses a method for synthesizing modified MAO. The method comprises the following steps: under nitrogen protection, adding a pulverized and water-containing compound into a three-necked flask; adding an inert solvent to dilute and stirring to ensure that the suspension is mixed evenly; The toluene solution of trimethylaluminum was slowly added dropwise to the reaction system through a constant pressure dropping funnel, and the dropwise addition was completed; after the dropwise addition, stirring was performed, and an alcohol solution was added. The solids are removed, and the solvent is removed under reduced pressure to obtain the solid methylaluminoxane. The present invention has the advantages of easy control of the reaction and high yield. From the evaluation results of the polymerization reaction, the modified alkylaluminoxane prepared by this method has better copolymerization performance. ; Technical characteristics such as simple process and low preparation cost. |